Nonlinear energy deposition of femtosecond laser filamentation in the laser-induced snowfall formation

W. Qing Zeng; Lei Liu; C. Tai Gao; J. Jing Ju; J. Ke Zhang

doi:10.1117/12.2522924

29 March 2019 Nonlinear energy deposition of femtosecond laser filamentation in the laser-induced snowfall formation

W. Qing Zeng, Lei Liu, C. Tai Gao, J. Jing Ju, J. Ke Zhang

Proceedings Volume 11046, Fifth International Symposium on Laser Interaction with Matter; 1104623 (2019) https://doi.org/10.1117/12.2522924
Event: Fifth International Symposium on Laser Interaction with Matter, 2018, Changsha, China

Abstract

Characteristics of energy deposition during filamentation are numerically investigated to understand the formation of different mass of snow with femtosecond laser pulses in a cloud chamber. The results show that the evolution of maximum airflow velocity and mass of snow is closely related to the amount of deposited energy. For the same input energy, the deposited energy is higher for laser pulse externally focused by an f=30 cm lens than an f=50 cm lens, which is in accordance with the higher airflow velocity and mass of snow in experiments with the former lens.

Citation Download Citation

W. Qing Zeng, Lei Liu, C. Tai Gao, J. Jing Ju, and J. Ke Zhang "Nonlinear energy deposition of femtosecond laser filamentation in the laser-induced snowfall formation", Proc. SPIE 11046, Fifth International Symposium on Laser Interaction with Matter, 1104623 (29 March 2019); https://doi.org/10.1117/12.2522924

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